CN101482671B - Backlight module with optical film having double-layer structure - Google Patents
Backlight module with optical film having double-layer structure Download PDFInfo
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- CN101482671B CN101482671B CN2008100323661A CN200810032366A CN101482671B CN 101482671 B CN101482671 B CN 101482671B CN 2008100323661 A CN2008100323661 A CN 2008100323661A CN 200810032366 A CN200810032366 A CN 200810032366A CN 101482671 B CN101482671 B CN 101482671B
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
- G02B6/0053—Prismatic sheet or layer; Brightness enhancement element, sheet or layer
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
- G02F1/133607—Direct backlight including a specially adapted diffusing, scattering or light controlling members the light controlling member including light directing or refracting elements, e.g. prisms or lenses
Abstract
Discloses is a backlight module for providing a light beam to a liquid crystal panel, wherein, a set of optical film comprises a diffusion sheet for receiving the light beam from the light source; a prism sheet for receiving the light beam from the diffusion sheet and transferring the light beam to the liquid crystal panel, wherein, the prism sheet is close to the liquid crystal panel, and a plurality of protuberances with conical cross sections are provided on the surface of the prism sheet closing to the liquid crystal panel, and one part of the protuberances is provided with a plurality of defects. The scheme omits an upper diffusion sheet, can omit one step for the process flow, the manufacturing efficiency is greatly improved. In addition, the prism sheet can directly provide the backlight to the LCD panel, so that the backlight with better effects can be provided.
Description
Technical field
The present invention relates to the module backlight in the flat panel display equipment, more particularly, relate to the blooming piece in the module backlight, the manufacturing materials of prism sheet especially wherein and structure.
Background technology
Flat panel display equipment, mainly formed such as LCD LCD by parts such as colored filter, backlight module, driving circuit IC, compensate film and Polarizer, glass substrate, ITO film, alignment film, control circuits, because liquid crystal panel itself is not had a characteristics of luminescence, must reach the function of demonstration by backlight module, the LCD panel manufacturers is after producing face glass, must be earlier in conjunction with colored filter, both pour into liquid crystal behind the involution, again with backlight module, driving circuit IC, the synthetic LCD module of control circuit board component groups.
Backlight module its mainly by light source (comprising cold cathode fluorescent tube (CCFL), hot cathode fluorescent tube, light emitting diode (LED) etc.), lampshade, reflecting plate (Reflector), light guide plate (Light guide plate), diffusion sheet (Diffusion sheet, be generally 2 up and down), prism sheet (prism sheet, be also referred to as brightness enhancement film, Brightness enhancement film 1-2 sheet) and assembly such as housing assemble, wherein blooming piece (comprising and diffusion sheet and prism sheet) is main technology and cost place with light guide plate.LCD is because its thin thickness, light weight and easy to carry, and has the advantage of low radiation compared to present CRT, and demand increases fast in recent years, and oneself can occupy a tiny space in the market of display.Lifting along with the LCD manufacturing technology, under the trend of large scale and low price, backlight module is also requiring lightweight, slimming, low power consumption, high brightness and is reducing cost, so, the backlight module that exploitation and design are novel and the new manufacturing technology of ejection formation are the direction and the important topics of making great efforts.
Generally speaking, backlight module can be divided into two kinds of preceding light formula (Front light) and backlight types (Back light), and backlight type can be according to the requirement of its scale, to do classification in the position of fluorescent tube, develops and following three macrostructures:
(1) side-light type (Edge lighting) structure, shown in figure 2a, light source 102 is the single Zhi Guangyuan of pendulum at side, light source 102 is connected to light guide plate 102a, reflecting plate 104 is positioned at the below of light guide plate 102a, the top of light guide plate 102a is blooming piece 106 (comprises up and down two-layer diffusion sheet and in the prism sheet between the diffusion sheet up and down), and the top of blooming piece 106 is LCD panels 108.
Fig. 2 b is depicted as a distortion of side-light type structure, and it all has light source in both sides, compares with the traditional side-light type structure shown in Fig. 2 a, and the structure of Fig. 2 b can provide better brightness.
(2) full run-down type (Bottom lighting) structure, shown in figure 2c, light beam from light source 102 (for example fluorescent tube, light emitting diode etc.) ejaculation, after reflecting plate 104 reflections, penetrate in the front after upwards the diffuser plate in blooming piece 106 evenly disperses, reach LCD panel 108, because of accommodation space becomes big, fluorescent tube can use two to a plurality of fluorescent tubes according to the display pannel size.
No matter comprehensive above-mentioned accompanying drawing 2a-2c adopts that above-mentioned a kind of structure, and the basic structure of module backlight can reduce, with reference to shown in Figure 1: light source and light guide member 102, reflecting plate 104, blooming piece 106, LCD panel 108.Wherein, light source and light guide member 102 are used to provide and direct light, light process reflecting plate 104 back reflections are to the blooming piece 106 that is positioned at white light reflection plate top, blooming piece 106 comprises diffusion sheet and prism sheet, the effect of optically focused, diffusion and atomizing for light beam or the like is provided, is provided for LCD panel 108 as use backlight through the light beam of above-mentioned processing.
The above-mentioned blooming piece of discussing 106 all is made up of 3 different optical layers of function, with reference to shown in Figure 3, comprises successively from bottom to up: following diffusion sheet 302, prism sheet (or perhaps blast sheet) 304 and last diffusion sheet 306.Wherein, following diffusion sheet 302 provides diffusion effect, and the spotlight effect (about 30%) of a part is provided; Prism sheet 304 provides the spotlight effect (about 60%) of a part and the effect of atomizing, makes light evenly to distribute, thereby provides backlight uniformly to LCD panel 108; The effect of last diffusion sheet 306 still can be protected prism sheet 304 except light beam is spread, reduce prism sheet 304 as far as possible and be subjected to scratch.
Summary of the invention
The present invention aims to provide a kind of module backlight that can save technological process.
A kind of module backlight is provided in one embodiment of the invention, in order to light beam to a liquid crystal panel to be provided, and to comprise one group of blooming piece and comprise: diffusion sheet, spread this light beam; Prism sheet, this light beam from this diffusion sheet is carried out optically focused, and make this light beam be sent to this liquid crystal panel, wherein, this prism sheet is close to this liquid crystal panel, and the xsect that the surface of contiguous this liquid crystal panel of this prism sheet is provided with several is the projection of taper, and the part in those projections is provided with several defective.
Also proposing to make the high rigidity material of this prism sheet in another embodiment of the present invention, is a kind of photohardenable resin compound, comprises: two functional groups or the multi-group methacrylates compound of 50～90% weight; The simple function group acrylate compounds of 0～50% weight; And the light trigger of 0～10% weight.
Adopt technical scheme of the present invention, saved the last diffusion sheet in the blooming piece, for technological process, can save a step, improved the efficient of making greatly, in addition, directly provide backlight by prism sheet the backlight of better effect can be provided to liquid crystal panel.
Description of drawings
Above-mentioned and other feature, character and advantage of the present invention will become more obvious by the description below in conjunction with drawings and Examples, in the accompanying drawings, identical Reference numeral is represented identical feature all the time, wherein:
Fig. 1 has disclosed the structure of the flat panel display equipment in the conventional art;
Fig. 2 a, 2b and 2c have disclosed in the conventional art concrete structure at the flat panel display equipment of different application;
Fig. 3 has disclosed the structure of the module backlight that uses in the conventional art;
Fig. 4 has disclosed the structure of the module backlight of one of the present invention embodiment;
Fig. 5 a and 5b have disclosed the atomizing structure of prism sheet upper surface in the module backlight of one of the present invention embodiment.
Embodiment
One of the present invention embodiment provides a kind of module backlight, comprises light providing device and one group of blooming piece, and light providing device comprises: light source, reflecting plate, outside framework can more comprise light guide plate in one embodiment; This group blooming piece comprises: diffusion sheet, spread this light beam; Prism sheet, this light beam from this diffusion sheet is carried out optically focused, and make this light beam be sent to this liquid crystal panel, wherein, this prism sheet next-door neighbour liquid crystal panel, and the xsect that the surface of contiguous this liquid crystal panel of prism sheet is provided with several is the projection of taper, and the part in those projections is provided with several defective.
With reference to shown in Figure 4, light providing device 401 provides light beam to diffusion sheet 402, the light beam that following diffusion sheet 402 receives from the light source of light providing device 401, and light beam spread, wherein, this light beam can be directly from the light source of light providing device 401, also can be from the reflecting plate of light providing device 401.The light beam that prism sheet 404 receives from diffusion sheet 402 carries out optically focused to this light beam from diffusion sheet 402, and prism sheet 404 next-door neighbour's liquid crystal panels 405 are not gone up diffusion sheet between prism sheet 404 and the liquid crystal panel (LCD panel) 405.
With reference to shown in figure 4, Fig. 5 a and the 5b, the xsect that the surface of prism sheet 404 contiguous liquid crystal panels 405 is provided with several is the projection of taper, and the part in those projections is provided with several defective.The defective of top and bottom can appear on the same projection, promptly in several above-mentioned projections, have some may be only the top defectiveness, have some may be only the bottom defectiveness, have some may tops and the bottom all by defective, also have some may all not have defective.The defective that is positioned at projection top (being also referred to as crest) can occur with the form of pit, can be with the form appearance of projection (not shown) and be positioned at the defective of projection bottom (being also referred to as trough).
In an embodiment, because of being provided with several above-mentioned defectives in several above-mentioned projections, can reach the effect that light beam is spread, therefore can save diffusion sheet.
In an embodiment, in order to save the last diffusion sheet that plays a protective role, be improved with regard to the hardness that needs prism sheet self, that just need provide a kind of higher hardness that has, and can meet the material of prism sheet optical property.Need to prove that main improvement of the present invention is the blooming piece part, for other structure in the module backlight, any form in the conventional art can combine with optical mode chip architecture of the present invention.
Among one of the present invention embodiment, adopt photohardenable resin compound to make prism sheet, this photohardenable resin compound comprises:
Two functional groups or the multi-group methacrylates compound of 50～90% weight;
The simple function group acrylate compounds of 0～50% weight; And
The light trigger of 0～10% weight.
Wherein, two above-mentioned functional acrylic ester compounds comprise: diacrylate 1,4-butanediol ester (1,4-butanediol diacrylate), diacrylate 1,6-hexanediol ester (1,6-hexanedioldiacrylate), diacrylate neopentyl glycol ester (neopentylglycol diacrylate), ethylene glycol diacrylate (ethylene glycol diacrylate), diacrylate triglycol ester (triethyleneglycol diacrylate) and diacrylate TEG ester (tetraethyleneglycol diacrylate).
Above-mentioned multi-group methacrylates compound comprises: trimethylolpropane triacrylate (trimethylolpropane triacrylate), glycerine triacrylate (glyceroltriacrylate), pentaerythritol triacrylate (pentaerythritol triacrylate), tetramethylol methane tetraacrylate (pentaerythritol tetraacrylate), and three (2-acryloxy ethyl) isocyanuric acid ester (tris (2-acryloyloxyethyl) isocyanurate).
Above-mentioned simple function group acrylate compounds comprises: ethyl propylene acid esters (ethylacrylate), n-butyl acrylate (n-butylacrylate), isobutyl acrylate (isobutylacrylate), 2-ethylhexyl acrylate (2-ethylhexylacrylate), n-hexyl acrylate (n-hexylacrylate), n-octyl acrylate (n-octylacrylate), isobornyl acrylate (isobornyl acrylate), tetrahydrofurfuryl acrylate (tetrahydrofurfuryl acrylate), acrylic acid 2-phenoxy ethyl (2-phenoxyethyl acrylate), N, the N-DMAA (N, N-dimethylacrylamide).
Other composition that can be used for making this photohardenable resin compound comprises: ethylenically unsaturated compounds (ethylenically unsaturated compounds) and resin (resins), specifically comprise: styrene (styrene), divinylbenzene (divinylbenzene), vinyltoluene (vinyl toluene), N-vinyl pyrrolidone (N-vinyl pyrrolidone), N-caprolactam (N-vinyl caprolactam), monoene propyl group (monoallyl), polyenoid propyl group (polyallyl), and many methylallyls ester (polymethallyl esters), such as phthalic anhydride diallyl ester (diallyl phthalate), the acid amides of hexane diacid diallyl ester (diallyl adipate) carboxylic acid (amides of carboxylic acids), such as N, N-diallyl adipamide (N, N-diallyladipamide).
Light trigger wherein comprises: the light that can mix with acyclic compound (acrylic compounds) gathers initiating agent (photopolymerization initiators), for example comprise: benzyl (benzyl), methyl o-benzoate (methyl o-benzoate), benzoin (benzoin), benzoin ethylether (benzoin ethyl ether), benzoin isopropyl ether (benzoin isopropyl ether), benzoin isobutyl ether (benzoin isobutyl ether), benzophenone/triamine (benzophenone/tertiary amine), acetophenone (acetophenones), such as 2, the 2-diethoxy acetophenone (2,2-diethoxyacetophenone), benzyl methyl ketal (benzylmethyl ketal), 1-hydroxycyclohexylphenylketone (1-hydroxycyclohexyl phenyl ketone);
2-hydroxy-2-methyl-1-phenyl third-1-ketone
(2-hydroxy-2-methyl-1-phenylpropan-1-one)、
1-(4-isopropyl phenyl)-2-hydroxy-2-methyl third-1-ketone
(1-(4-isopropylphenyl)-2-hydroxy-2-methylpropan-1-one)、
2-benzyl-2-N, N-dimethylamino-1-(4-morpholino)-1-butanone
(2-benzyl-2-N，N-dimethylamino-1-(4-morpholinophenyl)-1-butanone)、
2,4,6-trimethylbenzene formyl diphenyl phosphine oxide
(2，4，6-trimethylbenzoyldiphenylphosphine?oxide)、
2-methyl isophthalic acid-4-(methyl sulfo-) phenyl-2-morpholino-1-acetone
(2-methyl-1-4-(methylthio)phenyl-2-morpholion-1-propanone)。
According to an embodiment, above-mentioned photohardenable resin compound can make by following method: 38.8% weight polyurethane (methyl) acrylate of packing in the reactor of being furnished with stirrer is as component (A), 24.3% weight percent acrylic acid phenoxy ethyl and 11.7% weight to the acrylate (wherein having added oxirane) of cumyl phenol as component (B), 2.8% weight 1-hydroxycyclohexylphenylketone is as component (C), 0.5% weight Plysurf A-208B is as component (D), 10.7% weight is by joining acrylate epoxy (methyl) acrylate that produces in the diglycidyl ether of bisphenol-A, the diacrylate of the glycol of the bisphenol A polyethenoxy addition compound product of 11.2% weight.Potpourri was stirred 1 hour down at 50-60 ℃.
By the photohardenable resin compound that above-mentioned method makes, the test index of every performance is as follows:
Measuring 25 ℃ of following refractive indexes according to JIS K7105 is 1.550.
By the cohesive of cross-hatching measurement, do not find that grid comes off and good being bonded on the base material from base material according to JIS K5400, think that cohesive is qualified with polyethylene terephthalate (PET) base material.
According to an embodiment, it is as follows to utilize above-mentioned photohardenable resin compound to make the process of this prism sheet 404: at first get particle 40g insert stirrer, then will be deployed resin and adjuvant (as light trigger or various particle) be added to 2kg successively and stir 50～60 ℃ thereupon, the dispersion impeller of stirrer stirs and leaves standstill froth breaking after 1 hour as far as possible near the bottom but do not contact.Various prescriptions with different particles and resin material ratio are coated on the polyethylene terephthalate (PET) (175 microns), impress prism structure and (300～600mJ/cm2) make prismatic lens with ultraviolet light photopolymerization thereupon.
At least contain two propylene vinegars in one of them molecule of this photohardenable resin compound, its chemical constitution is as follows:
Wherein R1 can be alkyl;
Wherein R2 can be epoxies, alcohols (containing polyvalent alcohol), ammonia ester class (isocyanates/polyvalent alcohol) and silicon oxide compound.
Wherein, can add a certain proportion of particle composition in the above-mentioned photohardenable resin compound, the material of this particle can be selected from polycarbonate (PC), polystyrene (PS), polymethylmethacrylate (PMMA), tygon (PE), silicon dioxide (SiO
2), the diameter of particle is the 1-30 micron.The thickness of polyethylene terephthalate (PET) can be between the 25-350 micron, below in the example that will describe, the thickness of PET is 175 microns.
Table 1 has been listed the numerical value of backlight illumination under the situation of selecting different particles and resin material ratio (percentage by weight) and the brightness fiducial value of comparing with the three chip architectures module backlight under the conventional art.
Table 1
| Particle weight number percent | Backlight illumination | Compare with three traditional chip architectures |
| 0％ | 6025 | 102.67％ |
| 1％ | 5783 | 98.43％ |
| 2％ | 5629 | 96.19％ |
| 3％ | 5483 | 94.36％ |
| 5％ | 5189 | 88.25％ |
| 7％ | 4972 | 85.02％ |
| 10％ | 4673 | 79.35％ |
Wherein, the example percentage by weight is the number percent that the weight of value particle accounts for overall potpourri (particle+resin material).Wherein, be three chip architectures of the commercially available BEF III that gets of use in the so-called three traditional chip architectures of table 1 as prism sheet.
As shown in table 1, as seen the particle weight number percent difference of Jia Ruing, brightness for prism sheet is influential, be compared to three chip architectures of existing BEF III, the particle that adds percentage by weight 0%-10% can be so that the scope of brightness changes between the 79.35%-102.67% of traditional luminance standard.Need to prove, because the prism sheet 404 in one embodiment of the invention also has diffusion effect, therefore can regulate the distribution that module backlight offers the light beam of liquid crystal panel effectively, in addition, prism sheet 404 in one embodiment of the invention also has particle, except a step advanced in years provides the light diffusion effect, the brightness range of the pairing 79.35%-102.67% of particle concentration of above-mentioned 0%-10% percentage by weight can provide the effect of atomizing, to be applicable to different application requirements.For example, when institute's production prism sheet 404 whole spotlight effects are inhomogeneous, when promptly a part of spotlight effect of prism sheet 404 is high than other parts, adds particle and produce atomizing effect, can make human eye can't offer an explanation the uneven shortcoming of above-mentioned spotlight effect.Therefore, can make is that the prism sheet 404 of defective products becomes operable prism sheet 404 originally, to improve the product yield.
Adopt technical scheme of the present invention, saved last diffusion sheet,, can save a step, improved the efficient of making greatly, in addition, directly provide backlight by prism sheet the backlight of better effect can be provided to liquid crystal panel for technological process.
The foregoing description provides to being familiar with the person in the art and realizes or use of the present invention; those skilled in the art can be under the situation that does not break away from invention thought of the present invention; the foregoing description is made various modifications or variation; thereby protection scope of the present invention do not limit by the foregoing description, and should be the maximum magnitude that meets the inventive features that claims mention.
Claims (9)
1. module backlight, in order to a light beam to be provided, the near liquid crystal panel of this light beam is characterized in that, comprises one group of blooming piece, this group blooming piece comprises:
Diffusion sheet spreads this light beam; And
Prism sheet is carried out optically focused to this light beam from this diffusion sheet, and makes this light beam be sent to this liquid crystal panel,
Wherein, this prism sheet is close to this liquid crystal panel, and the xsect that the surface of contiguous this liquid crystal panel of this prism sheet is provided with several is the projection of taper, and the part in those projections is provided with several defective; Described prism sheet comprises photohardenable resin compound, and this photohardenable resin compound comprises:
Two functional groups or the multi-group methacrylates compound of 50～90% weight;
The simple function group acrylate compounds of 0～50% weight; And
The light trigger of 0～10% weight.
2. module backlight as claimed in claim 1 is characterized in that, also comprises:
Outside framework, this group blooming piece is arranged in this outside framework;
Light source is arranged in this outside framework, and provides this light beam to this diffusion sheet; And
Reflecting plate is arranged on the inwall of this outside framework, in order to this beam reflection of the part of the inwall that will be incident to this outside framework to this diffusion sheet.
3. module backlight as claimed in claim 1 or 2 is characterized in that,
This prism sheet comprises several particles.
4. module backlight as claimed in claim 3 is characterized in that,
Described several defectives are located at the top of the projection of described part.
5. module backlight as claimed in claim 4 is characterized in that,
Described each defective is a pit.
6. module backlight as claimed in claim 3 is characterized in that,
Described several defectives are located at the bottom of the projection of described part.
7. module backlight as claimed in claim 6 is characterized in that,
Described each defective is a projection.
8. module backlight as claimed in claim 1 is characterized in that,
Described two functional group propenoic acid ester compounds are to be selected from by diacrylate 1,4-butanediol ester (1,4-butanediol diacrylate), diacrylate 1,6-hexanediol ester (1,6-hexanedioldiacrylate), diacrylate neopentyl glycol ester (neopentylglycol diacrylate), ethylene glycol diacrylate (ethylene glycol diacrylate), diacrylate triglycol ester (triethyleneglycol diacrylate), and the group that formed of diacrylate TEG ester (tetraethyleneglycol diacrylate);
Described multi-group methacrylates compound is selected from by trimethylolpropane triacrylate (trimethylolpropane triacrylate), glycerine triacrylate (glyceroltriacrylate), pentaerythritol triacrylate (pentaerythritol triacrylate), tetramethylol methane tetraacrylate (pentaerythritol tetraacrylate), and the group that formed of three (2-acryloxy ethyl) isocyanuric acid ester (tris (2-acryloyloxyethyl) isocyanurate); And
Described simple function group acrylate compounds is to be selected from by ethyl propylene acid esters (ethylacrylate), n-butyl acrylate (n-butylacrylate), isobutyl acrylate (isobutylacrylate), 2-ethylhexyl acrylate (2-ethylhexylacrylate), n-hexyl acrylate (n-hexylacrylate), n-octyl acrylate (n-octylacrylate), isobornyl acrylate (isobornyl acrylate), tetrahydrofurfuryl acrylate (tetrahydrofurfuryl acrylate), acrylic acid 2-phenoxy ethyl (2-phenoxyethyl acrylate), and N, N-DMAA (N, N-dimethylacrylamide) group that is formed.
9. module backlight as claimed in claim 1 is characterized in that,
Described light trigger is to be selected from by benzyl (benzyl), methyl o-benzoate (methylo-benzoate), benzoin (benzoin), benzoin ethylether (benzoin ethyl ether), benzoin isopropyl ether (benzoin isopropyl ether), benzoin isobutyl ether (benzoinisobutyl ether), benzophenone/triamine (benzophenone/tertiary amine), acetophenone (acetophenones), benzyl methyl ketal (benzyl methyl ketal), 1-hydroxycyclohexylphenylketone (1-hydroxycyclohexyl phenyl ketone), 2-hydroxy-2-methyl-1-phenyl third-1-ketone
(2-hydroxy-2-methyl-1-phenylpropan-1-one)、
1-(4-isopropyl phenyl)-2-hydroxy-2-methyl third-1-ketone
(1-(4-isopropylphenyl)-2-hydroxy-2-methylpropan-1-one)、
2-benzyl-2-N, N-dimethylamino-1-(4-morpholino)-1-butanone
(2-benzyl-2-N，N-dimethylamino-1-(4-morpholinophenyl)-1-butanone)、
2,4,6-trimethylbenzene formyl diphenyl phosphine oxide
(2，4，6-trimethylbenzoyldiphenylphosphine?oxide)、
And 2-methyl isophthalic acid-4-(methyl sulfo-) phenyl-2-morpholino-1-acetone
The group that (2-methyl-1-4-(methylthio) phenyl-2-morpholion-1-propanone) formed.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100323661A CN101482671B (en) | 2008-01-08 | 2008-01-08 | Backlight module with optical film having double-layer structure |
| US12/292,414 US20090175028A1 (en) | 2008-01-08 | 2008-11-19 | Backlight module having an optical film set with two-film structure |
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|---|---|---|---|
| CN2008100323661A CN101482671B (en) | 2008-01-08 | 2008-01-08 | Backlight module with optical film having double-layer structure |
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| CN101482671B true CN101482671B (en) | 2011-07-06 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5600462A (en) * | 1992-09-16 | 1997-02-04 | International Business Machines Corporation | Optical film and liquid crystal display device using the film |
| EP1746457A1 (en) * | 2005-07-21 | 2007-01-24 | Omron Corporation | Light guide ilumination source with light diffusing and deflecting structures |
| CN101071182A (en) * | 2006-05-08 | 2007-11-14 | 未来纳米技术 | Optical sheet and backlight assembly having the same |
| CN101071181A (en) * | 2006-05-08 | 2007-11-14 | 未来纳米技术 | Optical sheet and backlight assembly having the same |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999042861A1 (en) * | 1998-02-18 | 1999-08-26 | Minnesota Mining And Manufacturing Company | Optical film |
| US20060056031A1 (en) * | 2004-09-10 | 2006-03-16 | Capaldo Kevin P | Brightness enhancement film, and methods of making and using the same |
| WO2004079408A1 (en) * | 2003-03-03 | 2004-09-16 | Mitsubishi Rayon Co., Ltd. | Optical deflector element and light source device |
| CA2523493A1 (en) * | 2003-05-02 | 2004-11-18 | Reflexite Corporation | Light-redirecting optical structures |
| US7502088B2 (en) * | 2005-03-17 | 2009-03-10 | Fujifilm Corporation | Liquid crystal display device having an antiglare layer |
| TW200801716A (en) * | 2006-06-27 | 2008-01-01 | Entire Technology Co Ltd | A high-brightness diffusion plate with trapezoid lens |
| TWI345113B (en) * | 2006-10-27 | 2011-07-11 | Chimei Innolux Corp | Backlight module and liquid crystal display device incorporating same |
-
2008
- 2008-01-08 CN CN2008100323661A patent/CN101482671B/en not_active Expired - Fee Related
- 2008-11-19 US US12/292,414 patent/US20090175028A1/en not_active Abandoned
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5600462A (en) * | 1992-09-16 | 1997-02-04 | International Business Machines Corporation | Optical film and liquid crystal display device using the film |
| EP1746457A1 (en) * | 2005-07-21 | 2007-01-24 | Omron Corporation | Light guide ilumination source with light diffusing and deflecting structures |
| CN101071182A (en) * | 2006-05-08 | 2007-11-14 | 未来纳米技术 | Optical sheet and backlight assembly having the same |
| CN101071181A (en) * | 2006-05-08 | 2007-11-14 | 未来纳米技术 | Optical sheet and backlight assembly having the same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101482671A (en) | 2009-07-15 |
| US20090175028A1 (en) | 2009-07-09 |
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